Compound for tanning hides.



UNITED STATES PATENT OFFICE.

GEORGE W. LANGLEY, OF GREENBRIER, ARKANSAS, ASSIGNOR OF ONE-HALF TO NOAH T. S DEMPSEY, OF GREENBRIER, ARKANSAS.

COMPOUND FOR TANNING HIDES.

Specification of Letters Patent.

Application filed June 26, 1908.

Patented Dec. 15, 1908.

Serial No. 440,535.

Extract of buckeye or horsechestnut (Esculus hippocastanum) 1 pound. Extract of poke-root (Phytolaccae radix) 2 pounds. Gambier- 12 pounds. Water 20 gallons.

I make the extract of buckeye or horse chestnut by boiling 12 pounds of horse-chestnut bark in 6 gallons of water for about two hours. I make the extract of poke-root by boiling 8 pounds of poke-root in 3 gallons of water for about 1% hours.

Hides after they have been dehaired and scraped are placed in this improved tanning compound from twenty "our to forty eight hours. Up er leather requires ordinarily to be kept in t is compound for from five to six days. Heavy harness and sole leather requires usually from ten to fifteen days. The tanner by observing the color of the hide can judge when it has been sufiiciently tanned.

Having thus described the invention, what I claim is A tanning compound consisting of extract of horse-chestnut, extract of poke-root, gambier and water, substantially in the proportions specified.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE W. LANGLEY.

Witnesses:

W. C. KELso, D. Gloves. 

